ActionBar Button Aspect Ratio

[Zelfie]

Random question.
I've seen on later versions of ElvUI that actionbar buttons can be modified to have different width/heights, to make rectangular buttons rather than the fixed squares.
Is there any chance of that appearing in this version? Or is WotLK too basic and hardcoded for it to work properly?

I could create weakauras for my entire actionbar, but that'll suck for vehicle combat/not include shift macro changing/and all sorts of reasons weakauras are difficult.

edit:
Also sorry I posted this in the wrong place. I suck at Github.